CVE-2023-21264 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Linux

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer10 documents7 sources
Severity
6.7MEDIUMNVD
OSV7.0OSV5.5
EPSS
0.0%
top 97.29%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxGoogle Android+1 more
Timeline
PublishedAug 14
Latest updateOct 31

Description

In multiple functions of mem_protect.c, there is a possible way to access hypervisor memory due to a memory access check in the wrong place. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 0.8 | Impact: 5.9

Affected Packages5 packages

▶debiandebian/linux< linux 6.3.7-1 (forky)
▶Debianlinux/linux_kernel< 6.3.7-1+1
▶CVEListV5google/androidAndroid kernel

Patches

Patch: android.googlesource.com ↗Patch: android.googlesource.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

4
OSV
linux-nvidia-6.2 vulnerabilities↗2023-10-31
▶
OSV
linux, linux-aws, linux-aws-6.2, linux-azure, linux-azure-6.2, linux-azure-fde-6.2, linux-gcp, linux-gcp-6.2, linux-hwe-6.2, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-ora↗2023-09-19
▶
GHSA
GHSA-38wf-932f-qv6q: In multiple functions of mem_protect↗2023-08-14
▶
OSV
CVE-2023-21264: In multiple functions of mem_protect↗2023-08-14
▶

📋Vendor Advisories

5
Ubuntu
Linux kernel (NVIDIA) vulnerabilities↗2023-10-31
▶
Ubuntu
Linux kernel vulnerabilities↗2023-09-19
▶
Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2023-4367↗2023-08-25
▶
Android
CVE-2023-21264: KVM↗2023-08-01
▶
Debian
CVE-2023-21264: linux - In multiple functions of mem_protect.c, there is a possible way to access hyperv...↗2023
▶